63973048571 has 4 divisors (see below), whose sum is σ = 65334177312. Its totient is φ = 62611919832.

The previous prime is 63973048567. The next prime is 63973048603. The reversal of 63973048571 is 17584037936.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63973048571 - 2² = 63973048567 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63973048871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680564300 + ... + 680564393.

It is an arithmetic number, because the mean of its divisors is an integer number (16333544328).

Almost surely, 2^63973048571 is an apocalyptic number.

63973048571 is a deficient number, since it is larger than the sum of its proper divisors (1361128741).

63973048571 is a wasteful number, since it uses less digits than its factorization.

63973048571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361128740.

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 63973048571 in words is "sixty-three billion, nine hundred seventy-three million, forty-eight thousand, five hundred seventy-one".